Boat.



J. MALY.

BOAT. APPLIUATION FILED 111111. is, 1911. 1,012,678. Patented Dec. 26,1911.

. 1 "z SHEETS-SHEET 1.

COLUMBIA PMNOORAPH cm, WASHINGTON, D. c.

J. MALI,

BOAT.

APPLICATION FIL E D AUG. 19, 1911.

Patented Dec. 26, 1911.

- 2 SHEETSSHEET 2v $42M mm COLUMBIA PLANODRAPH ED-,WASHINGTON. D. c.

JOHN MALY, OF NEW YORK, N. Y.

BOAT.

Specification of Letters Patent.

Patented Dec. 26, 1911.

Application filed August 19, 1911. Serial No. 645,000.

To all whom it may concern:

Be it known that I, JOHN MALY, a subject of the Emperor ofAustria-Hungary, residing at Bronx, New York city, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Boats, of which the following is a specification.

The present invention relates to boats or ships and has for its objectto provide means whereby the capsizing of a boat or ship may beprevented.

To accomplish my object, I provide a device which is adjustablysuspended from the boat or ship and is adapted to be sub-' merged in thewater, so as to allow of changing the position of the center of gravityaccording as necessary, in order to maintain the boat or ship inbalance.

My invention consists in the construction, combination and arrangementof parts as hereinafter specified and claimed.

To make my invention more clear, the same is illustrated in theaccompanying drawing, in which similar reference numerals denotecorresponding parts and in which- Figure 1 is a vertical section on line11 of Fig. 2; Fig. 2 is a plan view of a boat equipped with my newdevice; Fig. 3 is a section on line 3-3 of Fig. 1; Fig. 4 is an enlargedcross section on line 4.4l of Fig. 1 and Fig. 5 is an enlarged crosssection on line 55 of Fig. 1. g

In the drawings, which form a part of this specification, 1 denotes aboat or ship of ordinary construction and which may be either a rowboat, sailing boat, motor boat, or the like. Suitably suspended fromthis boat in an adjustable manner is a weighted body 2 which is arrangedbelow the keel portion of the boat or ship and is adapted to besubmerged in the water.

In the present embodiment of my invention, the body 2 consists of apivotally supported plate extending longitudinally of the boat, andcapable of being swung around its longitudinal central axis. To thisend, the plate has attached to it at its ends in the centrallongitudinal line, arms 4:, which project beyond the ends thereof.Pivotally connected to these arms are vertically movable members 5arranged at the fore and rear ends of the boat and projecting upwardthrough suitable guides 6, 7 secured to the boat. The connection of thevertically movable members 5 with the arms 4.- is accomplished by pins8, or the like, which are rotatively borne in the said arms and throughwhich the vertically movable members 5 are passed. These members 5 mayconsist of rods, or other suitable means and there may be suitablemeans, as set screws 9, or the like, for fixing the same in the adjustedposition.

When not in use, the body 2 is adapted to occupy the horizontal positionshown in Fig. 4:, in which case the vertically movable members 5 arelifted until the upper surface of the plate 2 is adjacent with thebottom or keel of the boat or ship. Suitable means may be provided,which tend to maintain the plate in horizontal position. In the presentexample, a spring 10 is shown, one end of which is secured to the plateand the other to one of the vertically movable members 5, said springhaving the tendency to tilt the plate 2 into the horizontal'position.

In position of use or in vertical position, the plate 2 may bemaintained by a suitable latch mechanism, as 11 (Figs. 1 and 3) or thelike. This latch mechanism consists of a spring actuated horizontallymovable bar arranged on the plate 2 and adapted to normally project intothe range of one of the members 5 opposite thereto. When the plate 2 istilted into vertical position, the bar will snap behind the said member5 thereby looking the plate in vertical position. When it is desired tobring the plate into horizontal position, the latch must be firstreleased from the member 5. To this end, the latch 11 is connected toone arm of a bell crank lever-'12 fulcrumed in the plate 2 and to theother arm of which is connected a rope 13, chain, or the like, whichextends upward into the boat and may be manipulated from within thelatter by hand, or in any other manner to bring about the release of thelatch. The tilting of the plate from vertical into horizontal positionwill take place automatically owing to the tension of the spring 10. Inorder to tilt the plate from horizontal into vertical position, Iprovide a rope or chain 1 1, which I attach to the plate near one of itslongitudinal edges and which likewise is extended into the boat to bemanipulated from within the latter in any suitable manner.

As already stated, when there is no occasion for changing the positionof the center of gravity of the boat, the plate may 00- cupy thehorizontal position (Fig. 4) so as to allow of the boat being used inshallow waters. But when, owing to certain circumstances, as high seas,etc., there is danger of the boat capsizing, the center of gravity mustbe lowered. This is accomplished by first pulling the rope 14 andthereby tilting the plate into vertical position, in which it willautomatically be locked by its latch 11 and thereupon lowering theupright plate to the extent necessary.

The raising and lowering of the plate may be accomplished by ropes,chains 15, or the like, attached to the fore and rear ends of the plateand extending upward into the boat. To facilitate this operation, awindlass 16 may be provided in the boat over which the two ropes areadapted to wind and unwind.

Having thus described my invention, and the manner of its operation, Ido not wish to be understood as limiting myself to the particularconstruction thereof, since various modlfications may be made thereln bythose skilled in the artwithout deviating from the principle of myinvention.

What I claim and desire to secure by Letters Patent is:

The combination with a boat, of a device for changing the center ofgravity thereof, embodying a plate arranged centrally below the bottomof the boat and adapted to be submerged in the water, rods verticallyslidable in the ends of the boat and pivotally connected to the saidplate, a spring between one of said rods and said plate tending to tiltthe latter into horizontal position, a latch mechanism on said platecooperating with one of said rods to normally hold the former invertical or upright position, means operablefrom within the boat toraise and lower the said plate and means within the boat to operate thesaid latch so as to release the said plate. I I

In testimony whereof I affix my signature in presence of two witnesses.

JOHN MALY.

Witnesses:

JOHN T. CARMoDY, MAX D. ORDMANN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

